A big portion of code in import process, are dedicated for validation.

If using the existing Import Window that already done with ADempiere, it is fine. But when it come to create my own import window, or adding more fields to validate, it is time consuming and error prone.

To address the above problem, I created an Import Validation Helper class (and a data mapping window) that will help mapping data / validate for valid ID even before it is sent into Import Table (when process Import File Loader).